Engineered for precision slotting and shoulder milling, the Dormer Pramet C139 6.5 mm HSS-E powder metallurgy slot drill combines reliability with versatility. Designed for shoulder milling, slot milling, and ramping, it delivers consistent performance on a range of materials while staying true to DIN 844 K standards.

• Diameter: 6.5 mm for precise, controlled slots and shoulders
• Flutes: 2-flute design for efficient chip evacuation and a clean finish
• Length of cut: 16 mm, suitable for shallow to mid-depth slots
• Overall length: 66 mm, providing reach and rigidity in confined spaces
• Shank: Weldon, 10 mm, delivering secure retention in collets and holders
• Material and construction: HSS-E with powder metallurgy for enhanced toughness and wear resistance
• Coating: TiCN coating to reduce friction and extend tool life
• Geometry: 30° helix and 12° rake angle optimized for shoulder milling, slot milling, and ramping
• Standard: DIN 844 K compatibility for broad machine-tool interoperability
• Applications: Suitable for slotting, shoulder milling, and ramping in free-machining steels, plain carbon and alloy steels, cast iron, copper and copper alloys, and titanium alloys

This slot drill is built to deliver dependable, repeatable results in everyday machining tasks. The 6.5 mm diameter, 16 mm length of cut, and 66 mm overall length make it a versatile choice for precise slots and clean shoulders, while the TiCN-coated HSS-E core provides longevity under extended cutting cycles. With a Weldon shank, you can count on secure engagement and consistent depth control across compatible toolholding systems. If your work involves free-machining steel or titanium alloys, this drill’s geometry and coating work together to minimize built‑up edge and optimize chip flow for smoother operations.